Furnace cover or door



J. D. ADAMS'.

FURNACE COVER 0R DOOR.

APPLICATION F|LEDJuLY10.192o.

1,3862 1 8. Patented ug. 2, 192:1. 2 FIG. 1l

A UNITED STATES PATENT] OFFICE.

TAMPS D. ADAMS, 0F BELLE VERNON, PENNSYLVANIA FUBNACE Govan on noo-n.'

i ToiaZZ whom t may concern:

Be it kndwn that I, JAMES D. ADAMS, a citizen of tlie United States, and resident of Belle Vernon, inthe county ofWes'tmoreland and State of Pennsylvania, have invented .a new and useful Improvement in Furnace Covers or Doors; and I do hereby declare the following tobea full, clear, and eXac't description thereof.

My invention relates to furnace covers or doors'.

While my invention is applicable to furnace covers or doors,. generally, it has particular application to soaking-pit. covers employed in steel plants. Heretofore in making these soaking-pit covers', it has been customary to make a cast-iron frame and line the same with frebrick, the iirebrick being Y set in mortar to retain said brick in osition.

The life of these soaking-pit-covers as been very short due to the intense lheat to which the covers are subjected, which causes a disintegration of the mortar and a loosening or falling out of the bricks. I

The object of my invention is to provide a soaking-pit or furnace cover in which the bricks forming the lining are'securely held in-position, and practically form an integral art of the frame yof the'cover itself, there y giving greater durability and greatly increasing the life of such soaking-pit cover. To these ends my invention comprises the novel features hereinafter set forth and claimed.' f y In the accompanying drawing Figure 1 is `a plan view of `a mold, ready for pouring, to

roduce my improved soaking pit cover; ig. 2 is a. section on the line 2-2, F1g1; and Fig. 3 is a section on the line 3 3, 1g.-

1 when the metal has been poured and the soaking pit cover completed and inposition on the soakin pit. t

The numera 2 designates a bed of molding sand in which my improved furnace cover is cast. An ordinary. wooden pattern is set down in the bed, t e pattern conforming to the shape ofthe cover to be cast therein, and when said pattern-is withdrawn, the

mold cavity consists of the Vcentral square l portion? with the radiating channels 4., and

specieation of Letters Patent.

adjacent the four corners the depressions 5 at the' bottoms of which rest the corepieces 6.

The refractory bricks 7 are laid on the level 8 of the mold cavity, said bricks being laid in any suitable manner with reference to each other, but suitable spaces 9 being left between said bricks. Two layers of bricks are preferably employed, and the outer layer is laid to break joint with the Patented Aug. 2, 1921. Application inea Jury 1o, 1920. serial No. 395,301.

inner layer, as shown in dotted lines Fig; 1. The mold is divided into four sections by the radiating channels 4, and in each section at or about the center thereofis the refractory circular tile 10 in which is inserted the core11. f

When the mold has been made up in this manner, the molten iron or steel is poured into the mold cavity, and the said molten iron or steel rising in said cavity fills up all the unoccupied spaces and rises up into the spaces y9 between the bricks so that when the mold is entirely filled, the bricks form an integral part ofthe entire casting and are."

surrounded and incased by the metal.

When'the metal is cooled and the pit cover is removed from the casting bed, the cares 6 and 11 having been removed, the pit-cover will have the appearance shown in Fig. 3 consisting of the inclosing body portion 12 with the ribs 13 radiating from the central Vso hub portion 14, and with the lugs 15 at the Y corners to which are connected the bars 16 of the pusher for moving the pit-cover into and out of position over the soaking-pit 17.

By my invention, I provide a soaking-pit cover in which the brick lining may be formed of ay double layer of bricks, the metalv ilowing in and around the bricks when the cover `1s cast, so as to make said bricks practically an integral part of the structure binding and tyingY them securely in` place withv the metal itself as distinguished from setting these bricks in mortar in the old manner of makin these pit-covers, providing thereby material'which will resist the disintegrating action of. the hjeat, and thereby greatly increasing the life of said covers.

What I claim 1s:Y

1. As a new article of manufacture, a fur- 100 nace cover or door formed of cast-metal anfl ythe metal forming the casting filling the with a brick lining, the metal forming the spaces between said bricks. 10 casting filling the spaces between said bricks In testimony whereof, I, the said JAMES and surrounding same. i D. ADAMS, have hereunto set my hand.

2. In a new article of manufacture, a fur- JAMES D. ADAMS. nace cover or door formed of cast-metal Witnesses: with a plurality of layers of brick forming RoT. D. TOTTEN,

the lining, said brick being spaced apart, JOHN F. WILL. 

